It's episode 54 of the Marudeca Advertising HQ hosted by Deka Shimamura and Ayoi Miradori. Well, it's about a 54-year old going through a challenge shoot of 54 Tokyo Marui airsoft guns and it's Deka himself accepting that challenge, which reveals his age as well. Watch the video how he fares with all the Tokyo Marui airsoft guns he can shoot with along the challenge.